Longtime celebrity couples: Then and now

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Actor Robert De Niro and Grace Hightower were married in 1997. They split in 1999 but never divorced, and in 2004, the couple renewed their vows. They are parents to two children (De Niro has four other child from previous releationships).

Amanda Edwards/WireImage

66of100

Actor Robert De Niro and Grace Hightower were married in 1997. They split in 1999 but never divorced, and in 2004, the couple renewed their vows. They are parents to two children (De Niro has four other child from previous releationships).